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JPL Small-Body Database Browser
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136904 (1998 HY59)
Classification: Outer Main-belt Asteroid          SPK-ID: 2136904
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1062735797179565 6.6874e-08  
a 3.236935916120197 3.5419e-08 au
q 2.892935148996481 2.1322e-07 au
i 16.51360906044154 9.6408e-06 deg
node 35.24557276747656 1.9694e-05 deg
peri 229.214562638741 4.4941e-05 deg
M 171.8250349486572 4.3704e-05 deg
tp 2457585.225404670210
(2016-Jul-15.72540467)
0.0002535 TDB
period 2127.157165589628
5.82
3.4914e-05
9.559e-08
d
yr
n .1692399630002005 2.7778e-09 deg/d
Q 3.580936683243913 3.9184e-08 au
  Orbit Determination Parameters
   # obs. used (total)      322  
   data-arc span      7565 days (20.71 yr)  
   first obs. used      1998-03-25  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65683  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:11:20  

Additional Information
 Earth MOID = 1.90769 au 
 Jupiter MOID = 1.52688 au 
 T_jup = 3.111 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO432830  
diameter diameter 6.803 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136904 (1998 HY59)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1998 HY59 = 2004 GN8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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